Washer Fluid Heating Device with Partitioned Baffle
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Solution Overview
Problem
The existing washer fluid heating devices experience high pressure loss and temperature decrease of the washer fluid when sprayed, due to the arrangement of perforated baffles which cause uneven flow and heat loss.
Innovation Solution
A washer fluid heating device with a partition member that vertically divides the storage space into upper and lower sections, featuring evenly distributed holes for smooth fluid rise and reduced pressure loss, and an outflow portion above the partition member to maintain temperature, along with optional protrusions and flexible material for improved flow and heat retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If three perforated baffles are vertically arranged to suppress convection, then convection above the baffles is suppressed, but the pressure loss of the washer fluid becomes high
Solution Approach 1:
The single baffle structure is segmented into an upper baffle and a lower baffle positioned at different heights. This segmentation allows the fluid to flow through multiple paths (over the upper baffle, through the lower baffle holes, and around the structures) rather than being forced through a single restrictive level, thereby reducing pressure loss while still suppressing convection effectively.
Solution Approach 2:
The solution transitions from a single-level baffle to a multi-level baffle arrangement in the vertical dimension. By distributing baffles at different heights (upper and lower positions), the system creates multiple flow paths through the vertical dimension, reducing flow resistance and pressure loss while maintaining convection suppression functionality.
2Ease of operation
If the hole position of the perforated baffle is biased to control flow, then flow direction is controlled, but the washer fluid is stirred above the baffle causing temperature decrease
Solution Approach 1:
The flow control function is extracted from the upper baffle and transferred to the lower baffle. The lower baffle's holes are specifically positioned to control flow direction and prevent stirring, while the upper baffle focuses solely on suppressing convection. This separation of functions allows each baffle to optimize its specific role without causing adverse effects.
Solution Approach 2:
The lower baffle acts as an intermediary element between the fluid source and the upper baffle. By controlling flow at the lower level through strategically positioned holes, it prevents turbulent stirring before the fluid reaches the upper baffle, thereby maintaining temperature while still achieving flow control objectives.
3Productivity
If the washer fluid rises abruptly to reduce heating time, then heating efficiency is improved, but the temperature of the washer fluid flowing out decreases due to heat loss
Solution Approach 1:
The upper baffle is positioned to suppress convection beforehand, creating a stable thermal environment before the fluid completes its heating process. This pre-established convection suppression prevents excessive heat loss and temperature degradation, allowing the fluid to maintain adequate temperature while still achieving efficient heating.
Solution Approach 2:
The system changes the thermal parameters by suppressing convection through the baffle arrangement. This reduces heat loss and maintains a more stable temperature profile during the heating process, ensuring that the outflow temperature remains adequate even with improved heating efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces pressure loss and maintains the temperature of the washer fluid, ensuring a consistent and efficient spray performance.
Implementation Method 1
An electric heater is provided in the internal space of the small heating chamber
Implementation Method 2
a plurality of holes which cause the washer fluid to pass from the lower side toward the upper side of the storage space are disposed to be substantially evenly distributed
Implementation Method 3
the washer fluid that has flowed into the storage space hits the partition member from below. An abrupt rise of the washer fluid can be suppressed by the partition member and it is possible to cause the washer fluid to slowly rise
Implementation Method 4
the plurality of holes through which the washer fluid passes from the lower side toward the upper side are disposed to be substantially evenly distributed. Therefore, the washer fluid rises from each of the plurality of holes disposed to be substantially evenly distributed. Therefore, the washer fluid can be caused to smoothly rise, and the pressure loss of the washer fluid can be reduced
Implementation Method 5
since the part of upper side and the part of lower side of the storage space are partitioned by the partition member, it is possible to cause heat to be less likely to escape into the part of lower side
Data Source
AI summary
A washer fluid heating device according to an embodiment includes: a container which stores a washer fluid; a deflector which vertically partitions a storage space for the washer fluid into an upper space and a lower space; an inflow portion through which the washer fluid flows into a lower side of the storage space partitioned by the deflector; an outflow portion which is provided to an upper side of the storage space partitioned by the deflector to cause the washer fluid to flow out of the container; and a heating portion which is positioned in the storage space, in which, in the deflector, a plurality of holes which cause the washer fluid to pass from the lower side toward the upper side of the storage space are disposed to be substantially evenly distributed.